Home / 2,128,222.61-2,937,009.67-1,161,415.29

Finding the Fourth Proportional to 2,128,222.61, 2,937,009.67 and 1,161,415.29

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Solution

The fourth proportional to 2,128,222.61, 2,937,009.67 and 1,161,415.29 is: 1,602,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,222.61 : 2,937,009.67 = 1,161,415.29 : x
  2. Step 2: Convert to fraction form
    2,128,222.61/2,937,009.67 = 1,161,415.29/x
  3. Step 3: Cross multiply
    2,128,222.61x = 2,937,009.67 × 1,161,415.29
  4. Step 4: Simplify right side
    2,128,222.61x = 3,411,087,937,615.85
  5. Step 5: Solve for x
    x = 3,411,087,937,615.85/2,128,222.61
  6. Step 6: Final answer
    x = 1,602,787.19

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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.