Home / 4,478.68-6,719.23-1,557.21

Finding the Fourth Proportional to 4,478.68, 6,719.23 and 1,557.21

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Solution

The fourth proportional to 4,478.68, 6,719.23 and 1,557.21 is: 2,336.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.68 : 6,719.23 = 1,557.21 : x
  2. Step 2: Convert to fraction form
    4,478.68/6,719.23 = 1,557.21/x
  3. Step 3: Cross multiply
    4,478.68x = 6,719.23 × 1,557.21
  4. Step 4: Simplify right side
    4,478.68x = 10,463,254.09
  5. Step 5: Solve for x
    x = 10,463,254.09/4,478.68
  6. Step 6: Final answer
    x = 2,336.24

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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.