Home / 4,479.40-6,722.16-1,557.68

Finding the Fourth Proportional to 4,479.40, 6,722.16 and 1,557.68

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Solution

The fourth proportional to 4,479.40, 6,722.16 and 1,557.68 is: 2,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.40 : 6,722.16 = 1,557.68 : x
  2. Step 2: Convert to fraction form
    4,479.40/6,722.16 = 1,557.68/x
  3. Step 3: Cross multiply
    4,479.40x = 6,722.16 × 1,557.68
  4. Step 4: Simplify right side
    4,479.40x = 10,470,974.19
  5. Step 5: Solve for x
    x = 10,470,974.19/4,479.40
  6. Step 6: Final answer
    x = 2,337.58

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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.