Home / 4,300.80-6,438.88-2,646.20

Finding the Fourth Proportional to 4,300.80, 6,438.88 and 2,646.20

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Solution

The fourth proportional to 4,300.80, 6,438.88 and 2,646.20 is: 3,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,300.80 : 6,438.88 = 2,646.20 : x
  2. Step 2: Convert to fraction form
    4,300.80/6,438.88 = 2,646.20/x
  3. Step 3: Cross multiply
    4,300.80x = 6,438.88 × 2,646.20
  4. Step 4: Simplify right side
    4,300.80x = 17,038,564.26
  5. Step 5: Solve for x
    x = 17,038,564.26/4,300.80
  6. Step 6: Final answer
    x = 3,961.72

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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.