Home / 7,047.28-10,570.12-1,853.56

Finding the Fourth Proportional to 7,047.28, 10,570.12 and 1,853.56

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Solution

The fourth proportional to 7,047.28, 10,570.12 and 1,853.56 is: 2,780.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.28 : 10,570.12 = 1,853.56 : x
  2. Step 2: Convert to fraction form
    7,047.28/10,570.12 = 1,853.56/x
  3. Step 3: Cross multiply
    7,047.28x = 10,570.12 × 1,853.56
  4. Step 4: Simplify right side
    7,047.28x = 19,592,351.63
  5. Step 5: Solve for x
    x = 19,592,351.63/7,047.28
  6. Step 6: Final answer
    x = 2,780.13

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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.