Home / 2,154,130.95-2,972,718.81-1,187,263.71

Finding the Fourth Proportional to 2,154,130.95, 2,972,718.81 and 1,187,263.71

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Solution

The fourth proportional to 2,154,130.95, 2,972,718.81 and 1,187,263.71 is: 1,638,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,130.95 : 2,972,718.81 = 1,187,263.71 : x
  2. Step 2: Convert to fraction form
    2,154,130.95/2,972,718.81 = 1,187,263.71/x
  3. Step 3: Cross multiply
    2,154,130.95x = 2,972,718.81 × 1,187,263.71
  4. Step 4: Simplify right side
    2,154,130.95x = 3,529,401,163,147.39
  5. Step 5: Solve for x
    x = 3,529,401,163,147.39/2,154,130.95
  6. Step 6: Final answer
    x = 1,638,433.90

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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.