Home / 5,185.59-7,154.07-2,916.40

Finding the Fourth Proportional to 5,185.59, 7,154.07 and 2,916.40

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Solution

The fourth proportional to 5,185.59, 7,154.07 and 2,916.40 is: 4,023.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.59 : 7,154.07 = 2,916.40 : x
  2. Step 2: Convert to fraction form
    5,185.59/7,154.07 = 2,916.40/x
  3. Step 3: Cross multiply
    5,185.59x = 7,154.07 × 2,916.40
  4. Step 4: Simplify right side
    5,185.59x = 20,864,129.75
  5. Step 5: Solve for x
    x = 20,864,129.75/5,185.59
  6. Step 6: Final answer
    x = 4,023.48

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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.