Home / 2,281.32-3,148.08-1,396.95

Finding the Fourth Proportional to 2,281.32, 3,148.08 and 1,396.95

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Solution

The fourth proportional to 2,281.32, 3,148.08 and 1,396.95 is: 1,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.32 : 3,148.08 = 1,396.95 : x
  2. Step 2: Convert to fraction form
    2,281.32/3,148.08 = 1,396.95/x
  3. Step 3: Cross multiply
    2,281.32x = 3,148.08 × 1,396.95
  4. Step 4: Simplify right side
    2,281.32x = 4,397,710.36
  5. Step 5: Solve for x
    x = 4,397,710.36/2,281.32
  6. Step 6: Final answer
    x = 1,927.70

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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.