Home / 7,120.06-10,675.81-2,955.04

Finding the Fourth Proportional to 7,120.06, 10,675.81 and 2,955.04

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Solution

The fourth proportional to 7,120.06, 10,675.81 and 2,955.04 is: 4,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.06 : 10,675.81 = 2,955.04 : x
  2. Step 2: Convert to fraction form
    7,120.06/10,675.81 = 2,955.04/x
  3. Step 3: Cross multiply
    7,120.06x = 10,675.81 × 2,955.04
  4. Step 4: Simplify right side
    7,120.06x = 31,547,445.58
  5. Step 5: Solve for x
    x = 31,547,445.58/7,120.06
  6. Step 6: Final answer
    x = 4,430.78

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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.