Home / 2,878,389.64-3,972,410.76-1,655,092.72

Finding the Fourth Proportional to 2,878,389.64, 3,972,410.76 and 1,655,092.72

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Solution

The fourth proportional to 2,878,389.64, 3,972,410.76 and 1,655,092.72 is: 2,284,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,389.64 : 3,972,410.76 = 1,655,092.72 : x
  2. Step 2: Convert to fraction form
    2,878,389.64/3,972,410.76 = 1,655,092.72/x
  3. Step 3: Cross multiply
    2,878,389.64x = 3,972,410.76 × 1,655,092.72
  4. Step 4: Simplify right side
    2,878,389.64x = 6,574,708,145,553.29
  5. Step 5: Solve for x
    x = 6,574,708,145,553.29/2,878,389.64
  6. Step 6: Final answer
    x = 2,284,161.97

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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.