Home / 2,478.64-3,420.58-1,484.96

Finding the Fourth Proportional to 2,478.64, 3,420.58 and 1,484.96

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Solution

The fourth proportional to 2,478.64, 3,420.58 and 1,484.96 is: 2,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,478.64 : 3,420.58 = 1,484.96 : x
  2. Step 2: Convert to fraction form
    2,478.64/3,420.58 = 1,484.96/x
  3. Step 3: Cross multiply
    2,478.64x = 3,420.58 × 1,484.96
  4. Step 4: Simplify right side
    2,478.64x = 5,079,424.48
  5. Step 5: Solve for x
    x = 5,079,424.48/2,478.64
  6. Step 6: Final answer
    x = 2,049.28

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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.