Home / 2,191.47-3,023.04-1,306.65

Finding the Fourth Proportional to 2,191.47, 3,023.04 and 1,306.65

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Solution

The fourth proportional to 2,191.47, 3,023.04 and 1,306.65 is: 1,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.47 : 3,023.04 = 1,306.65 : x
  2. Step 2: Convert to fraction form
    2,191.47/3,023.04 = 1,306.65/x
  3. Step 3: Cross multiply
    2,191.47x = 3,023.04 × 1,306.65
  4. Step 4: Simplify right side
    2,191.47x = 3,950,047.10
  5. Step 5: Solve for x
    x = 3,950,047.10/2,191.47
  6. Step 6: Final answer
    x = 1,802.46

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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.