Home / 1,513.17-2,088.36-923.94

Finding the Fourth Proportional to 1,513.17, 2,088.36 and 923.94

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Solution

The fourth proportional to 1,513.17, 2,088.36 and 923.94 is: 1,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.17 : 2,088.36 = 923.94 : x
  2. Step 2: Convert to fraction form
    1,513.17/2,088.36 = 923.94/x
  3. Step 3: Cross multiply
    1,513.17x = 2,088.36 × 923.94
  4. Step 4: Simplify right side
    1,513.17x = 1,929,519.34
  5. Step 5: Solve for x
    x = 1,929,519.34/1,513.17
  6. Step 6: Final answer
    x = 1,275.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.