Home / 4,307.28-6,464.96-2,117.58

Finding the Fourth Proportional to 4,307.28, 6,464.96 and 2,117.58

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Solution

The fourth proportional to 4,307.28, 6,464.96 and 2,117.58 is: 3,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,307.28 : 6,464.96 = 2,117.58 : x
  2. Step 2: Convert to fraction form
    4,307.28/6,464.96 = 2,117.58/x
  3. Step 3: Cross multiply
    4,307.28x = 6,464.96 × 2,117.58
  4. Step 4: Simplify right side
    4,307.28x = 13,690,070.00
  5. Step 5: Solve for x
    x = 13,690,070.00/4,307.28
  6. Step 6: Final answer
    x = 3,178.36

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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.