Home / 1,531.49-2,295.18-837.12

Finding the Fourth Proportional to 1,531.49, 2,295.18 and 837.12

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Solution

The fourth proportional to 1,531.49, 2,295.18 and 837.12 is: 1,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.49 : 2,295.18 = 837.12 : x
  2. Step 2: Convert to fraction form
    1,531.49/2,295.18 = 837.12/x
  3. Step 3: Cross multiply
    1,531.49x = 2,295.18 × 837.12
  4. Step 4: Simplify right side
    1,531.49x = 1,921,341.08
  5. Step 5: Solve for x
    x = 1,921,341.08/1,531.49
  6. Step 6: Final answer
    x = 1,254.56

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Half 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.