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Finding the Fourth Proportional to 1,134.30, 1,701.45 and 558.30

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Solution

The fourth proportional to 1,134.30, 1,701.45 and 558.30 is: 837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.30 : 1,701.45 = 558.30 : x
  2. Step 2: Convert to fraction form
    1,134.30/1,701.45 = 558.30/x
  3. Step 3: Cross multiply
    1,134.30x = 1,701.45 × 558.30
  4. Step 4: Simplify right side
    1,134.30x = 949,919.54
  5. Step 5: Solve for x
    x = 949,919.54/1,134.30
  6. Step 6: Final answer
    x = 837.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.