Home / 2,113.16-2,915.70-1,416.20

Finding the Fourth Proportional to 2,113.16, 2,915.70 and 1,416.20

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Solution

The fourth proportional to 2,113.16, 2,915.70 and 1,416.20 is: 1,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.16 : 2,915.70 = 1,416.20 : x
  2. Step 2: Convert to fraction form
    2,113.16/2,915.70 = 1,416.20/x
  3. Step 3: Cross multiply
    2,113.16x = 2,915.70 × 1,416.20
  4. Step 4: Simplify right side
    2,113.16x = 4,129,214.34
  5. Step 5: Solve for x
    x = 4,129,214.34/2,113.16
  6. Step 6: Final answer
    x = 1,954.05

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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.