Home / 5,639.48-8,459.70-1,479.46

Finding the Fourth Proportional to 5,639.48, 8,459.70 and 1,479.46

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Solution

The fourth proportional to 5,639.48, 8,459.70 and 1,479.46 is: 2,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.48 : 8,459.70 = 1,479.46 : x
  2. Step 2: Convert to fraction form
    5,639.48/8,459.70 = 1,479.46/x
  3. Step 3: Cross multiply
    5,639.48x = 8,459.70 × 1,479.46
  4. Step 4: Simplify right side
    5,639.48x = 12,515,787.76
  5. Step 5: Solve for x
    x = 12,515,787.76/5,639.48
  6. Step 6: Final answer
    x = 2,219.32

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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.