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Finding the Fourth Proportional to 7,119.04, 9,820.02 and 5,130.52

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Solution

The fourth proportional to 7,119.04, 9,820.02 and 5,130.52 is: 7,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.04 : 9,820.02 = 5,130.52 : x
  2. Step 2: Convert to fraction form
    7,119.04/9,820.02 = 5,130.52/x
  3. Step 3: Cross multiply
    7,119.04x = 9,820.02 × 5,130.52
  4. Step 4: Simplify right side
    7,119.04x = 50,381,809.01
  5. Step 5: Solve for x
    x = 50,381,809.01/7,119.04
  6. Step 6: Final answer
    x = 7,077.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.