Home / 4,765.12-7,148.40-1,686.88

Finding the Fourth Proportional to 4,765.12, 7,148.40 and 1,686.88

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Solution

The fourth proportional to 4,765.12, 7,148.40 and 1,686.88 is: 2,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.12 : 7,148.40 = 1,686.88 : x
  2. Step 2: Convert to fraction form
    4,765.12/7,148.40 = 1,686.88/x
  3. Step 3: Cross multiply
    4,765.12x = 7,148.40 × 1,686.88
  4. Step 4: Simplify right side
    4,765.12x = 12,058,492.99
  5. Step 5: Solve for x
    x = 12,058,492.99/4,765.12
  6. Step 6: Final answer
    x = 2,530.57

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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.