Home / 3,315.28-4,973.96-1,368.40

Finding the Fourth Proportional to 3,315.28, 4,973.96 and 1,368.40

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Solution

The fourth proportional to 3,315.28, 4,973.96 and 1,368.40 is: 2,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.28 : 4,973.96 = 1,368.40 : x
  2. Step 2: Convert to fraction form
    3,315.28/4,973.96 = 1,368.40/x
  3. Step 3: Cross multiply
    3,315.28x = 4,973.96 × 1,368.40
  4. Step 4: Simplify right side
    3,315.28x = 6,806,366.86
  5. Step 5: Solve for x
    x = 6,806,366.86/3,315.28
  6. Step 6: Final answer
    x = 2,053.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.