Home / 1,809.23-2,700.86-1,680.75

Finding the Fourth Proportional to 1,809.23, 2,700.86 and 1,680.75

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Solution

The fourth proportional to 1,809.23, 2,700.86 and 1,680.75 is: 2,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.23 : 2,700.86 = 1,680.75 : x
  2. Step 2: Convert to fraction form
    1,809.23/2,700.86 = 1,680.75/x
  3. Step 3: Cross multiply
    1,809.23x = 2,700.86 × 1,680.75
  4. Step 4: Simplify right side
    1,809.23x = 4,539,462.04
  5. Step 5: Solve for x
    x = 4,539,462.04/1,809.23
  6. Step 6: Final answer
    x = 2,509.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.