Home / 3,113.61-4,300.47-2,272.95

Finding the Fourth Proportional to 3,113.61, 4,300.47 and 2,272.95

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Solution

The fourth proportional to 3,113.61, 4,300.47 and 2,272.95 is: 3,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.61 : 4,300.47 = 2,272.95 : x
  2. Step 2: Convert to fraction form
    3,113.61/4,300.47 = 2,272.95/x
  3. Step 3: Cross multiply
    3,113.61x = 4,300.47 × 2,272.95
  4. Step 4: Simplify right side
    3,113.61x = 9,774,753.29
  5. Step 5: Solve for x
    x = 9,774,753.29/3,113.61
  6. Step 6: Final answer
    x = 3,139.36

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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.