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Finding the Fourth Proportional to 1,150.05, 1,587.04 and 652.74

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Solution

The fourth proportional to 1,150.05, 1,587.04 and 652.74 is: 900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.05 : 1,587.04 = 652.74 : x
  2. Step 2: Convert to fraction form
    1,150.05/1,587.04 = 652.74/x
  3. Step 3: Cross multiply
    1,150.05x = 1,587.04 × 652.74
  4. Step 4: Simplify right side
    1,150.05x = 1,035,924.49
  5. Step 5: Solve for x
    x = 1,035,924.49/1,150.05
  6. Step 6: Final answer
    x = 900.76

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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.