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Finding the Fourth Proportional to 1,540.84, 2,125.64 and 951.16

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Solution

The fourth proportional to 1,540.84, 2,125.64 and 951.16 is: 1,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.84 : 2,125.64 = 951.16 : x
  2. Step 2: Convert to fraction form
    1,540.84/2,125.64 = 951.16/x
  3. Step 3: Cross multiply
    1,540.84x = 2,125.64 × 951.16
  4. Step 4: Simplify right side
    1,540.84x = 2,021,823.74
  5. Step 5: Solve for x
    x = 2,021,823.74/1,540.84
  6. Step 6: Final answer
    x = 1,312.16

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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.