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Finding the Fourth Proportional to 1,944.04, 2,916.08 and 557.40

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Solution

The fourth proportional to 1,944.04, 2,916.08 and 557.40 is: 836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.04 : 2,916.08 = 557.40 : x
  2. Step 2: Convert to fraction form
    1,944.04/2,916.08 = 557.40/x
  3. Step 3: Cross multiply
    1,944.04x = 2,916.08 × 557.40
  4. Step 4: Simplify right side
    1,944.04x = 1,625,422.99
  5. Step 5: Solve for x
    x = 1,625,422.99/1,944.04
  6. Step 6: Final answer
    x = 836.11

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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.