Home / 1,040.40-1,560.20-346.93

Finding the Fourth Proportional to 1,040.40, 1,560.20 and 346.93

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Solution

The fourth proportional to 1,040.40, 1,560.20 and 346.93 is: 520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040.40 : 1,560.20 = 346.93 : x
  2. Step 2: Convert to fraction form
    1,040.40/1,560.20 = 346.93/x
  3. Step 3: Cross multiply
    1,040.40x = 1,560.20 × 346.93
  4. Step 4: Simplify right side
    1,040.40x = 541,280.19
  5. Step 5: Solve for x
    x = 541,280.19/1,040.40
  6. Step 6: Final answer
    x = 520.26

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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.