Home / 2,170.48-2,986.02-1,917.16

Finding the Fourth Proportional to 2,170.48, 2,986.02 and 1,917.16

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Solution

The fourth proportional to 2,170.48, 2,986.02 and 1,917.16 is: 2,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.48 : 2,986.02 = 1,917.16 : x
  2. Step 2: Convert to fraction form
    2,170.48/2,986.02 = 1,917.16/x
  3. Step 3: Cross multiply
    2,170.48x = 2,986.02 × 1,917.16
  4. Step 4: Simplify right side
    2,170.48x = 5,724,678.10
  5. Step 5: Solve for x
    x = 5,724,678.10/2,170.48
  6. Step 6: Final answer
    x = 2,637.52

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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.