Home / 5,312.11-7,970.13-2,192.39

Finding the Fourth Proportional to 5,312.11, 7,970.13 and 2,192.39

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Solution

The fourth proportional to 5,312.11, 7,970.13 and 2,192.39 is: 3,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.11 : 7,970.13 = 2,192.39 : x
  2. Step 2: Convert to fraction form
    5,312.11/7,970.13 = 2,192.39/x
  3. Step 3: Cross multiply
    5,312.11x = 7,970.13 × 2,192.39
  4. Step 4: Simplify right side
    5,312.11x = 17,473,633.31
  5. Step 5: Solve for x
    x = 17,473,633.31/5,312.11
  6. Step 6: Final answer
    x = 3,289.40

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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.