Home / 1,955.91-2,699.61-1,117.09

Finding the Fourth Proportional to 1,955.91, 2,699.61 and 1,117.09

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Solution

The fourth proportional to 1,955.91, 2,699.61 and 1,117.09 is: 1,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.91 : 2,699.61 = 1,117.09 : x
  2. Step 2: Convert to fraction form
    1,955.91/2,699.61 = 1,117.09/x
  3. Step 3: Cross multiply
    1,955.91x = 2,699.61 × 1,117.09
  4. Step 4: Simplify right side
    1,955.91x = 3,015,707.33
  5. Step 5: Solve for x
    x = 3,015,707.33/1,955.91
  6. Step 6: Final answer
    x = 1,541.84

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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.