Home / 5,005.76-7,508.84-1,719.18

Finding the Fourth Proportional to 5,005.76, 7,508.84 and 1,719.18

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Solution

The fourth proportional to 5,005.76, 7,508.84 and 1,719.18 is: 2,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.76 : 7,508.84 = 1,719.18 : x
  2. Step 2: Convert to fraction form
    5,005.76/7,508.84 = 1,719.18/x
  3. Step 3: Cross multiply
    5,005.76x = 7,508.84 × 1,719.18
  4. Step 4: Simplify right side
    5,005.76x = 12,909,038.96
  5. Step 5: Solve for x
    x = 12,909,038.96/5,005.76
  6. Step 6: Final answer
    x = 2,578.84

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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.