Home / 2,153,848.86-2,972,331.72-1,187,013.96

Finding the Fourth Proportional to 2,153,848.86, 2,972,331.72 and 1,187,013.96

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Solution

The fourth proportional to 2,153,848.86, 2,972,331.72 and 1,187,013.96 is: 1,638,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,848.86 : 2,972,331.72 = 1,187,013.96 : x
  2. Step 2: Convert to fraction form
    2,153,848.86/2,972,331.72 = 1,187,013.96/x
  3. Step 3: Cross multiply
    2,153,848.86x = 2,972,331.72 × 1,187,013.96
  4. Step 4: Simplify right side
    2,153,848.86x = 3,528,199,245,390.81
  5. Step 5: Solve for x
    x = 3,528,199,245,390.81/2,153,848.86
  6. Step 6: Final answer
    x = 1,638,090.45

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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.