Home / 4,327.60-6,491.40-1,406.20

Finding the Fourth Proportional to 4,327.60, 6,491.40 and 1,406.20

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Solution

The fourth proportional to 4,327.60, 6,491.40 and 1,406.20 is: 2,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,327.60 : 6,491.40 = 1,406.20 : x
  2. Step 2: Convert to fraction form
    4,327.60/6,491.40 = 1,406.20/x
  3. Step 3: Cross multiply
    4,327.60x = 6,491.40 × 1,406.20
  4. Step 4: Simplify right side
    4,327.60x = 9,128,206.68
  5. Step 5: Solve for x
    x = 9,128,206.68/4,327.60
  6. Step 6: Final answer
    x = 2,109.30

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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.