Home / 3,088.40-4,631.78-1,113.62

Finding the Fourth Proportional to 3,088.40, 4,631.78 and 1,113.62

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Solution

The fourth proportional to 3,088.40, 4,631.78 and 1,113.62 is: 1,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.40 : 4,631.78 = 1,113.62 : x
  2. Step 2: Convert to fraction form
    3,088.40/4,631.78 = 1,113.62/x
  3. Step 3: Cross multiply
    3,088.40x = 4,631.78 × 1,113.62
  4. Step 4: Simplify right side
    3,088.40x = 5,158,022.47
  5. Step 5: Solve for x
    x = 5,158,022.47/3,088.40
  6. Step 6: Final answer
    x = 1,670.13

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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.