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Finding the Fourth Proportional to 1,182.04, 1,630.02 and 716.20

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Solution

The fourth proportional to 1,182.04, 1,630.02 and 716.20 is: 987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.04 : 1,630.02 = 716.20 : x
  2. Step 2: Convert to fraction form
    1,182.04/1,630.02 = 716.20/x
  3. Step 3: Cross multiply
    1,182.04x = 1,630.02 × 716.20
  4. Step 4: Simplify right side
    1,182.04x = 1,167,420.32
  5. Step 5: Solve for x
    x = 1,167,420.32/1,182.04
  6. Step 6: Final answer
    x = 987.63

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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.