Home / 4,220.64-6,331.84-1,298.88

Finding the Fourth Proportional to 4,220.64, 6,331.84 and 1,298.88

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Solution

The fourth proportional to 4,220.64, 6,331.84 and 1,298.88 is: 1,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.64 : 6,331.84 = 1,298.88 : x
  2. Step 2: Convert to fraction form
    4,220.64/6,331.84 = 1,298.88/x
  3. Step 3: Cross multiply
    4,220.64x = 6,331.84 × 1,298.88
  4. Step 4: Simplify right side
    4,220.64x = 8,224,300.34
  5. Step 5: Solve for x
    x = 8,224,300.34/4,220.64
  6. Step 6: Final answer
    x = 1,948.59

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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.