Home / 4,321.81-6,483.54-1,689.20

Finding the Fourth Proportional to 4,321.81, 6,483.54 and 1,689.20

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Solution

The fourth proportional to 4,321.81, 6,483.54 and 1,689.20 is: 2,534.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.81 : 6,483.54 = 1,689.20 : x
  2. Step 2: Convert to fraction form
    4,321.81/6,483.54 = 1,689.20/x
  3. Step 3: Cross multiply
    4,321.81x = 6,483.54 × 1,689.20
  4. Step 4: Simplify right side
    4,321.81x = 10,952,030.47
  5. Step 5: Solve for x
    x = 10,952,030.47/4,321.81
  6. Step 6: Final answer
    x = 2,534.13

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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.