Home / 3,657,645.28-5,047,621.84-2,189,065.76

Finding the Fourth Proportional to 3,657,645.28, 5,047,621.84 and 2,189,065.76

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Solution

The fourth proportional to 3,657,645.28, 5,047,621.84 and 2,189,065.76 is: 3,020,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657,645.28 : 5,047,621.84 = 2,189,065.76 : x
  2. Step 2: Convert to fraction form
    3,657,645.28/5,047,621.84 = 2,189,065.76/x
  3. Step 3: Cross multiply
    3,657,645.28x = 5,047,621.84 × 2,189,065.76
  4. Step 4: Simplify right side
    3,657,645.28x = 11,049,576,139,372.20
  5. Step 5: Solve for x
    x = 11,049,576,139,372.20/3,657,645.28
  6. Step 6: Final answer
    x = 3,020,953.45

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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.