Home / 2,873.62-4,312.14-2,691.40

Finding the Fourth Proportional to 2,873.62, 4,312.14 and 2,691.40

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Solution

The fourth proportional to 2,873.62, 4,312.14 and 2,691.40 is: 4,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.62 : 4,312.14 = 2,691.40 : x
  2. Step 2: Convert to fraction form
    2,873.62/4,312.14 = 2,691.40/x
  3. Step 3: Cross multiply
    2,873.62x = 4,312.14 × 2,691.40
  4. Step 4: Simplify right side
    2,873.62x = 11,605,693.60
  5. Step 5: Solve for x
    x = 11,605,693.60/2,873.62
  6. Step 6: Final answer
    x = 4,038.70

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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.