Home / 4,456.64-6,683.85-1,990.10

Finding the Fourth Proportional to 4,456.64, 6,683.85 and 1,990.10

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Solution

The fourth proportional to 4,456.64, 6,683.85 and 1,990.10 is: 2,984.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,456.64 : 6,683.85 = 1,990.10 : x
  2. Step 2: Convert to fraction form
    4,456.64/6,683.85 = 1,990.10/x
  3. Step 3: Cross multiply
    4,456.64x = 6,683.85 × 1,990.10
  4. Step 4: Simplify right side
    4,456.64x = 13,301,496.47
  5. Step 5: Solve for x
    x = 13,301,496.47/4,456.64
  6. Step 6: Final answer
    x = 2,984.65

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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.