Home / 2,128,242.40-2,937,036.93-1,161,435.12

Finding the Fourth Proportional to 2,128,242.40, 2,937,036.93 and 1,161,435.12

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Solution

The fourth proportional to 2,128,242.40, 2,937,036.93 and 1,161,435.12 is: 1,602,814.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,242.40 : 2,937,036.93 = 1,161,435.12 : x
  2. Step 2: Convert to fraction form
    2,128,242.40/2,937,036.93 = 1,161,435.12/x
  3. Step 3: Cross multiply
    2,128,242.40x = 2,937,036.93 × 1,161,435.12
  4. Step 4: Simplify right side
    2,128,242.40x = 3,411,177,839,238.98
  5. Step 5: Solve for x
    x = 3,411,177,839,238.98/2,128,242.40
  6. Step 6: Final answer
    x = 1,602,814.53

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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.