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Finding the Fourth Proportional to 1,903.59, 2,627.10 and 1,158.20

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Solution

The fourth proportional to 1,903.59, 2,627.10 and 1,158.20 is: 1,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.59 : 2,627.10 = 1,158.20 : x
  2. Step 2: Convert to fraction form
    1,903.59/2,627.10 = 1,158.20/x
  3. Step 3: Cross multiply
    1,903.59x = 2,627.10 × 1,158.20
  4. Step 4: Simplify right side
    1,903.59x = 3,042,694.08
  5. Step 5: Solve for x
    x = 3,042,694.08/1,903.59
  6. Step 6: Final answer
    x = 1,598.40

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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.