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Finding the Fourth Proportional to 1,088.21, 1,501.77 and 590.88

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Solution

The fourth proportional to 1,088.21, 1,501.77 and 590.88 is: 815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.21 : 1,501.77 = 590.88 : x
  2. Step 2: Convert to fraction form
    1,088.21/1,501.77 = 590.88/x
  3. Step 3: Cross multiply
    1,088.21x = 1,501.77 × 590.88
  4. Step 4: Simplify right side
    1,088.21x = 887,369.27
  5. Step 5: Solve for x
    x = 887,369.27/1,088.21
  6. Step 6: Final answer
    x = 815.44

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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.