Home / 2,225.39-3,070.95-1,439.88

Finding the Fourth Proportional to 2,225.39, 3,070.95 and 1,439.88

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Solution

The fourth proportional to 2,225.39, 3,070.95 and 1,439.88 is: 1,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.39 : 3,070.95 = 1,439.88 : x
  2. Step 2: Convert to fraction form
    2,225.39/3,070.95 = 1,439.88/x
  3. Step 3: Cross multiply
    2,225.39x = 3,070.95 × 1,439.88
  4. Step 4: Simplify right side
    2,225.39x = 4,421,799.49
  5. Step 5: Solve for x
    x = 4,421,799.49/2,225.39
  6. Step 6: Final answer
    x = 1,986.98

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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.