Home / 4,390.40-6,587.12-1,924.88

Finding the Fourth Proportional to 4,390.40, 6,587.12 and 1,924.88

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Solution

The fourth proportional to 4,390.40, 6,587.12 and 1,924.88 is: 2,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.40 : 6,587.12 = 1,924.88 : x
  2. Step 2: Convert to fraction form
    4,390.40/6,587.12 = 1,924.88/x
  3. Step 3: Cross multiply
    4,390.40x = 6,587.12 × 1,924.88
  4. Step 4: Simplify right side
    4,390.40x = 12,679,415.55
  5. Step 5: Solve for x
    x = 12,679,415.55/4,390.40
  6. Step 6: Final answer
    x = 2,887.99

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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.