Home / 2,158,051.40-2,978,111.20-1,191,182.02

Finding the Fourth Proportional to 2,158,051.40, 2,978,111.20 and 1,191,182.02

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Solution

The fourth proportional to 2,158,051.40, 2,978,111.20 and 1,191,182.02 is: 1,643,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,051.40 : 2,978,111.20 = 1,191,182.02 : x
  2. Step 2: Convert to fraction form
    2,158,051.40/2,978,111.20 = 1,191,182.02/x
  3. Step 3: Cross multiply
    2,158,051.40x = 2,978,111.20 × 1,191,182.02
  4. Step 4: Simplify right side
    2,158,051.40x = 3,547,472,515,000.62
  5. Step 5: Solve for x
    x = 3,547,472,515,000.62/2,158,051.40
  6. Step 6: Final answer
    x = 1,643,831.34

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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.