Home / 2,853.23-4,275.74-1,680.47

Finding the Fourth Proportional to 2,853.23, 4,275.74 and 1,680.47

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Solution

The fourth proportional to 2,853.23, 4,275.74 and 1,680.47 is: 2,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.23 : 4,275.74 = 1,680.47 : x
  2. Step 2: Convert to fraction form
    2,853.23/4,275.74 = 1,680.47/x
  3. Step 3: Cross multiply
    2,853.23x = 4,275.74 × 1,680.47
  4. Step 4: Simplify right side
    2,853.23x = 7,185,223.02
  5. Step 5: Solve for x
    x = 7,185,223.02/2,853.23
  6. Step 6: Final answer
    x = 2,518.28

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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.