Home / 1,039.50-1,559.23-346.22

Finding the Fourth Proportional to 1,039.50, 1,559.23 and 346.22

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Solution

The fourth proportional to 1,039.50, 1,559.23 and 346.22 is: 519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.50 : 1,559.23 = 346.22 : x
  2. Step 2: Convert to fraction form
    1,039.50/1,559.23 = 346.22/x
  3. Step 3: Cross multiply
    1,039.50x = 1,559.23 × 346.22
  4. Step 4: Simplify right side
    1,039.50x = 539,836.61
  5. Step 5: Solve for x
    x = 539,836.61/1,039.50
  6. Step 6: Final answer
    x = 519.32

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Double scale
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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.