Home / 2,955.51-4,079.34-1,679.74

Finding the Fourth Proportional to 2,955.51, 4,079.34 and 1,679.74

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Solution

The fourth proportional to 2,955.51, 4,079.34 and 1,679.74 is: 2,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.51 : 4,079.34 = 1,679.74 : x
  2. Step 2: Convert to fraction form
    2,955.51/4,079.34 = 1,679.74/x
  3. Step 3: Cross multiply
    2,955.51x = 4,079.34 × 1,679.74
  4. Step 4: Simplify right side
    2,955.51x = 6,852,215.65
  5. Step 5: Solve for x
    x = 6,852,215.65/2,955.51
  6. Step 6: Final answer
    x = 2,318.45

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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.