Home / 4,270.40-6,407.20-1,675.12

Finding the Fourth Proportional to 4,270.40, 6,407.20 and 1,675.12

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Solution

The fourth proportional to 4,270.40, 6,407.20 and 1,675.12 is: 2,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,270.40 : 6,407.20 = 1,675.12 : x
  2. Step 2: Convert to fraction form
    4,270.40/6,407.20 = 1,675.12/x
  3. Step 3: Cross multiply
    4,270.40x = 6,407.20 × 1,675.12
  4. Step 4: Simplify right side
    4,270.40x = 10,732,828.86
  5. Step 5: Solve for x
    x = 10,732,828.86/4,270.40
  6. Step 6: Final answer
    x = 2,513.31

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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.