Home / 2,158,134.70-2,978,225.43-1,191,264.73

Finding the Fourth Proportional to 2,158,134.70, 2,978,225.43 and 1,191,264.73

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Solution

The fourth proportional to 2,158,134.70, 2,978,225.43 and 1,191,264.73 is: 1,643,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,134.70 : 2,978,225.43 = 1,191,264.73 : x
  2. Step 2: Convert to fraction form
    2,158,134.70/2,978,225.43 = 1,191,264.73/x
  3. Step 3: Cross multiply
    2,158,134.70x = 2,978,225.43 × 1,191,264.73
  4. Step 4: Simplify right side
    2,158,134.70x = 3,547,854,912,748.08
  5. Step 5: Solve for x
    x = 3,547,854,912,748.08/2,158,134.70
  6. Step 6: Final answer
    x = 1,643,945.08

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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.