Home / 4,280.60-6,421.08-1,358.84

Finding the Fourth Proportional to 4,280.60, 6,421.08 and 1,358.84

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Solution

The fourth proportional to 4,280.60, 6,421.08 and 1,358.84 is: 2,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.60 : 6,421.08 = 1,358.84 : x
  2. Step 2: Convert to fraction form
    4,280.60/6,421.08 = 1,358.84/x
  3. Step 3: Cross multiply
    4,280.60x = 6,421.08 × 1,358.84
  4. Step 4: Simplify right side
    4,280.60x = 8,725,188.24
  5. Step 5: Solve for x
    x = 8,725,188.24/4,280.60
  6. Step 6: Final answer
    x = 2,038.31

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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.