Home / 2,106.06-2,904.96-1,318.74

Finding the Fourth Proportional to 2,106.06, 2,904.96 and 1,318.74

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Solution

The fourth proportional to 2,106.06, 2,904.96 and 1,318.74 is: 1,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.06 : 2,904.96 = 1,318.74 : x
  2. Step 2: Convert to fraction form
    2,106.06/2,904.96 = 1,318.74/x
  3. Step 3: Cross multiply
    2,106.06x = 2,904.96 × 1,318.74
  4. Step 4: Simplify right side
    2,106.06x = 3,830,886.95
  5. Step 5: Solve for x
    x = 3,830,886.95/2,106.06
  6. Step 6: Final answer
    x = 1,818.98

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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.