Home / 1,088.13-1,501.63-590.78

Finding the Fourth Proportional to 1,088.13, 1,501.63 and 590.78

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Solution

The fourth proportional to 1,088.13, 1,501.63 and 590.78 is: 815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.13 : 1,501.63 = 590.78 : x
  2. Step 2: Convert to fraction form
    1,088.13/1,501.63 = 590.78/x
  3. Step 3: Cross multiply
    1,088.13x = 1,501.63 × 590.78
  4. Step 4: Simplify right side
    1,088.13x = 887,129.71
  5. Step 5: Solve for x
    x = 887,129.71/1,088.13
  6. Step 6: Final answer
    x = 815.28

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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.