Home / 5,312.88-7,332.12-2,955.72

Finding the Fourth Proportional to 5,312.88, 7,332.12 and 2,955.72

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Solution

The fourth proportional to 5,312.88, 7,332.12 and 2,955.72 is: 4,079.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.88 : 7,332.12 = 2,955.72 : x
  2. Step 2: Convert to fraction form
    5,312.88/7,332.12 = 2,955.72/x
  3. Step 3: Cross multiply
    5,312.88x = 7,332.12 × 2,955.72
  4. Step 4: Simplify right side
    5,312.88x = 21,671,693.73
  5. Step 5: Solve for x
    x = 21,671,693.73/5,312.88
  6. Step 6: Final answer
    x = 4,079.09

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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.