Home / 1,368.48-2,038.20-1,342.56

Finding the Fourth Proportional to 1,368.48, 2,038.20 and 1,342.56

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Solution

The fourth proportional to 1,368.48, 2,038.20 and 1,342.56 is: 1,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.48 : 2,038.20 = 1,342.56 : x
  2. Step 2: Convert to fraction form
    1,368.48/2,038.20 = 1,342.56/x
  3. Step 3: Cross multiply
    1,368.48x = 2,038.20 × 1,342.56
  4. Step 4: Simplify right side
    1,368.48x = 2,736,405.79
  5. Step 5: Solve for x
    x = 2,736,405.79/1,368.48
  6. Step 6: Final answer
    x = 1,999.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.