Home / 4,280.85-6,421.77-1,648.26

Finding the Fourth Proportional to 4,280.85, 6,421.77 and 1,648.26

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Solution

The fourth proportional to 4,280.85, 6,421.77 and 1,648.26 is: 2,472.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.85 : 6,421.77 = 1,648.26 : x
  2. Step 2: Convert to fraction form
    4,280.85/6,421.77 = 1,648.26/x
  3. Step 3: Cross multiply
    4,280.85x = 6,421.77 × 1,648.26
  4. Step 4: Simplify right side
    4,280.85x = 10,584,746.62
  5. Step 5: Solve for x
    x = 10,584,746.62/4,280.85
  6. Step 6: Final answer
    x = 2,472.58

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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.