Home / 3,020.79-4,156.21-2,448.53

Finding the Fourth Proportional to 3,020.79, 4,156.21 and 2,448.53

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Solution

The fourth proportional to 3,020.79, 4,156.21 and 2,448.53 is: 3,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.79 : 4,156.21 = 2,448.53 : x
  2. Step 2: Convert to fraction form
    3,020.79/4,156.21 = 2,448.53/x
  3. Step 3: Cross multiply
    3,020.79x = 4,156.21 × 2,448.53
  4. Step 4: Simplify right side
    3,020.79x = 10,176,602.74
  5. Step 5: Solve for x
    x = 10,176,602.74/3,020.79
  6. Step 6: Final answer
    x = 3,368.85

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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.