Home / 2,106,441.72-2,906,877.60-1,139,569.20

Finding the Fourth Proportional to 2,106,441.72, 2,906,877.60 and 1,139,569.20

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Solution

The fourth proportional to 2,106,441.72, 2,906,877.60 and 1,139,569.20 is: 1,572,599.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,441.72 : 2,906,877.60 = 1,139,569.20 : x
  2. Step 2: Convert to fraction form
    2,106,441.72/2,906,877.60 = 1,139,569.20/x
  3. Step 3: Cross multiply
    2,106,441.72x = 2,906,877.60 × 1,139,569.20
  4. Step 4: Simplify right side
    2,106,441.72x = 3,312,588,181,129.92
  5. Step 5: Solve for x
    x = 3,312,588,181,129.92/2,106,441.72
  6. Step 6: Final answer
    x = 1,572,599.02

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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.