Home / 4,280.44-6,420.14-1,160.25

Finding the Fourth Proportional to 4,280.44, 6,420.14 and 1,160.25

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Solution

The fourth proportional to 4,280.44, 6,420.14 and 1,160.25 is: 1,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.44 : 6,420.14 = 1,160.25 : x
  2. Step 2: Convert to fraction form
    4,280.44/6,420.14 = 1,160.25/x
  3. Step 3: Cross multiply
    4,280.44x = 6,420.14 × 1,160.25
  4. Step 4: Simplify right side
    4,280.44x = 7,448,970.34
  5. Step 5: Solve for x
    x = 7,448,970.34/4,280.44
  6. Step 6: Final answer
    x = 1,740.24

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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.