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Finding the Fourth Proportional to 1,492.66, 2,238.48 and 752.08

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Solution

The fourth proportional to 1,492.66, 2,238.48 and 752.08 is: 1,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492.66 : 2,238.48 = 752.08 : x
  2. Step 2: Convert to fraction form
    1,492.66/2,238.48 = 752.08/x
  3. Step 3: Cross multiply
    1,492.66x = 2,238.48 × 752.08
  4. Step 4: Simplify right side
    1,492.66x = 1,683,516.04
  5. Step 5: Solve for x
    x = 1,683,516.04/1,492.66
  6. Step 6: Final answer
    x = 1,127.86

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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.