Home / 2,715.49-4,077-1,400.18

Finding the Fourth Proportional to 2,715.49, 4,077 and 1,400.18

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Solution

The fourth proportional to 2,715.49, 4,077 and 1,400.18 is: 2,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.49 : 4,077 = 1,400.18 : x
  2. Step 2: Convert to fraction form
    2,715.49/4,077 = 1,400.18/x
  3. Step 3: Cross multiply
    2,715.49x = 4,077 × 1,400.18
  4. Step 4: Simplify right side
    2,715.49x = 5,708,533.86
  5. Step 5: Solve for x
    x = 5,708,533.86/2,715.49
  6. Step 6: Final answer
    x = 2,102.21

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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.