Home / 4,219.92-6,285.38-4,030.40

Finding the Fourth Proportional to 4,219.92, 6,285.38 and 4,030.40

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Solution

The fourth proportional to 4,219.92, 6,285.38 and 4,030.40 is: 6,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.92 : 6,285.38 = 4,030.40 : x
  2. Step 2: Convert to fraction form
    4,219.92/6,285.38 = 4,030.40/x
  3. Step 3: Cross multiply
    4,219.92x = 6,285.38 × 4,030.40
  4. Step 4: Simplify right side
    4,219.92x = 25,332,595.55
  5. Step 5: Solve for x
    x = 25,332,595.55/4,219.92
  6. Step 6: Final answer
    x = 6,003.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.