Home / 4,459.68-6,690.69-1,538.20

Finding the Fourth Proportional to 4,459.68, 6,690.69 and 1,538.20

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Solution

The fourth proportional to 4,459.68, 6,690.69 and 1,538.20 is: 2,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.68 : 6,690.69 = 1,538.20 : x
  2. Step 2: Convert to fraction form
    4,459.68/6,690.69 = 1,538.20/x
  3. Step 3: Cross multiply
    4,459.68x = 6,690.69 × 1,538.20
  4. Step 4: Simplify right side
    4,459.68x = 10,291,619.36
  5. Step 5: Solve for x
    x = 10,291,619.36/4,459.68
  6. Step 6: Final answer
    x = 2,307.70

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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.