Home / 4,341.28-6,511.92-1,420.16

Finding the Fourth Proportional to 4,341.28, 6,511.92 and 1,420.16

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Solution

The fourth proportional to 4,341.28, 6,511.92 and 1,420.16 is: 2,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,341.28 : 6,511.92 = 1,420.16 : x
  2. Step 2: Convert to fraction form
    4,341.28/6,511.92 = 1,420.16/x
  3. Step 3: Cross multiply
    4,341.28x = 6,511.92 × 1,420.16
  4. Step 4: Simplify right side
    4,341.28x = 9,247,968.31
  5. Step 5: Solve for x
    x = 9,247,968.31/4,341.28
  6. Step 6: Final answer
    x = 2,130.24

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1.5x scale

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.