Home / 3,420.60-5,159.32-3,014.80

Finding the Fourth Proportional to 3,420.60, 5,159.32 and 3,014.80

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Solution

The fourth proportional to 3,420.60, 5,159.32 and 3,014.80 is: 4,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.60 : 5,159.32 = 3,014.80 : x
  2. Step 2: Convert to fraction form
    3,420.60/5,159.32 = 3,014.80/x
  3. Step 3: Cross multiply
    3,420.60x = 5,159.32 × 3,014.80
  4. Step 4: Simplify right side
    3,420.60x = 15,554,317.94
  5. Step 5: Solve for x
    x = 15,554,317.94/3,420.60
  6. Step 6: Final answer
    x = 4,547.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.