Home / 1,013.13-1,520.23-500.13

Finding the Fourth Proportional to 1,013.13, 1,520.23 and 500.13

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Solution

The fourth proportional to 1,013.13, 1,520.23 and 500.13 is: 750.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.13 : 1,520.23 = 500.13 : x
  2. Step 2: Convert to fraction form
    1,013.13/1,520.23 = 500.13/x
  3. Step 3: Cross multiply
    1,013.13x = 1,520.23 × 500.13
  4. Step 4: Simplify right side
    1,013.13x = 760,312.63
  5. Step 5: Solve for x
    x = 760,312.63/1,013.13
  6. Step 6: Final answer
    x = 750.46

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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.