Home / 4,439.79-6,659.64-1,478.45

Finding the Fourth Proportional to 4,439.79, 6,659.64 and 1,478.45

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Solution

The fourth proportional to 4,439.79, 6,659.64 and 1,478.45 is: 2,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,439.79 : 6,659.64 = 1,478.45 : x
  2. Step 2: Convert to fraction form
    4,439.79/6,659.64 = 1,478.45/x
  3. Step 3: Cross multiply
    4,439.79x = 6,659.64 × 1,478.45
  4. Step 4: Simplify right side
    4,439.79x = 9,845,931.81
  5. Step 5: Solve for x
    x = 9,845,931.81/4,439.79
  6. Step 6: Final answer
    x = 2,217.66

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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.