Home / 4,428.34-6,642.52-1,308.40

Finding the Fourth Proportional to 4,428.34, 6,642.52 and 1,308.40

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Solution

The fourth proportional to 4,428.34, 6,642.52 and 1,308.40 is: 1,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.34 : 6,642.52 = 1,308.40 : x
  2. Step 2: Convert to fraction form
    4,428.34/6,642.52 = 1,308.40/x
  3. Step 3: Cross multiply
    4,428.34x = 6,642.52 × 1,308.40
  4. Step 4: Simplify right side
    4,428.34x = 8,691,053.29
  5. Step 5: Solve for x
    x = 8,691,053.29/4,428.34
  6. Step 6: Final answer
    x = 1,962.60

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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.