Home / 2,113.40-2,916.48-1,169.18

Finding the Fourth Proportional to 2,113.40, 2,916.48 and 1,169.18

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Solution

The fourth proportional to 2,113.40, 2,916.48 and 1,169.18 is: 1,613.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.40 : 2,916.48 = 1,169.18 : x
  2. Step 2: Convert to fraction form
    2,113.40/2,916.48 = 1,169.18/x
  3. Step 3: Cross multiply
    2,113.40x = 2,916.48 × 1,169.18
  4. Step 4: Simplify right side
    2,113.40x = 3,409,890.09
  5. Step 5: Solve for x
    x = 3,409,890.09/2,113.40
  6. Step 6: Final answer
    x = 1,613.46

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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.