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Finding the Fourth Proportional to 1,088.36, 1,501.80 and 616.28

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Solution

The fourth proportional to 1,088.36, 1,501.80 and 616.28 is: 850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.36 : 1,501.80 = 616.28 : x
  2. Step 2: Convert to fraction form
    1,088.36/1,501.80 = 616.28/x
  3. Step 3: Cross multiply
    1,088.36x = 1,501.80 × 616.28
  4. Step 4: Simplify right side
    1,088.36x = 925,529.30
  5. Step 5: Solve for x
    x = 925,529.30/1,088.36
  6. Step 6: Final answer
    x = 850.39

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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.