Home / 6,670.28-9,205.65-4,019.90

Finding the Fourth Proportional to 6,670.28, 9,205.65 and 4,019.90

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Solution

The fourth proportional to 6,670.28, 9,205.65 and 4,019.90 is: 5,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,670.28 : 9,205.65 = 4,019.90 : x
  2. Step 2: Convert to fraction form
    6,670.28/9,205.65 = 4,019.90/x
  3. Step 3: Cross multiply
    6,670.28x = 9,205.65 × 4,019.90
  4. Step 4: Simplify right side
    6,670.28x = 37,005,746.41
  5. Step 5: Solve for x
    x = 37,005,746.41/6,670.28
  6. Step 6: Final answer
    x = 5,547.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.