Home / 2,113.16-2,916.15-1,181.66

Finding the Fourth Proportional to 2,113.16, 2,916.15 and 1,181.66

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Solution

The fourth proportional to 2,113.16, 2,916.15 and 1,181.66 is: 1,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.16 : 2,916.15 = 1,181.66 : x
  2. Step 2: Convert to fraction form
    2,113.16/2,916.15 = 1,181.66/x
  3. Step 3: Cross multiply
    2,113.16x = 2,916.15 × 1,181.66
  4. Step 4: Simplify right side
    2,113.16x = 3,445,897.81
  5. Step 5: Solve for x
    x = 3,445,897.81/2,113.16
  6. Step 6: Final answer
    x = 1,630.68

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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.