Home / 2,891,616.96-3,990,591.20-1,602,430.40

Finding the Fourth Proportional to 2,891,616.96, 3,990,591.20 and 1,602,430.40

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Solution

The fourth proportional to 2,891,616.96, 3,990,591.20 and 1,602,430.40 is: 2,211,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,616.96 : 3,990,591.20 = 1,602,430.40 : x
  2. Step 2: Convert to fraction form
    2,891,616.96/3,990,591.20 = 1,602,430.40/x
  3. Step 3: Cross multiply
    2,891,616.96x = 3,990,591.20 × 1,602,430.40
  4. Step 4: Simplify right side
    2,891,616.96x = 6,394,644,652,852.48
  5. Step 5: Solve for x
    x = 6,394,644,652,852.48/2,891,616.96
  6. Step 6: Final answer
    x = 2,211,442.50

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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.