Home / 1,040.30-1,560.24-346.85

Finding the Fourth Proportional to 1,040.30, 1,560.24 and 346.85

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Solution

The fourth proportional to 1,040.30, 1,560.24 and 346.85 is: 520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.30 : 1,560.24 = 346.85 : x
  2. Step 2: Convert to fraction form
    1,040.30/1,560.24 = 346.85/x
  3. Step 3: Cross multiply
    1,040.30x = 1,560.24 × 346.85
  4. Step 4: Simplify right side
    1,040.30x = 541,169.24
  5. Step 5: Solve for x
    x = 541,169.24/1,040.30
  6. Step 6: Final answer
    x = 520.20

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,041.30, 1,561.74 and 347.85
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.