Home / 1,343.04-1,851.99-1,312.86

Finding the Fourth Proportional to 1,343.04, 1,851.99 and 1,312.86

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Solution

The fourth proportional to 1,343.04, 1,851.99 and 1,312.86 is: 1,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.04 : 1,851.99 = 1,312.86 : x
  2. Step 2: Convert to fraction form
    1,343.04/1,851.99 = 1,312.86/x
  3. Step 3: Cross multiply
    1,343.04x = 1,851.99 × 1,312.86
  4. Step 4: Simplify right side
    1,343.04x = 2,431,403.59
  5. Step 5: Solve for x
    x = 2,431,403.59/1,343.04
  6. Step 6: Final answer
    x = 1,810.37

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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.