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Finding the Fourth Proportional to 2,703.81, 4,070.07 and 1,929.18

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Solution

The fourth proportional to 2,703.81, 4,070.07 and 1,929.18 is: 2,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.81 : 4,070.07 = 1,929.18 : x
  2. Step 2: Convert to fraction form
    2,703.81/4,070.07 = 1,929.18/x
  3. Step 3: Cross multiply
    2,703.81x = 4,070.07 × 1,929.18
  4. Step 4: Simplify right side
    2,703.81x = 7,851,912.91
  5. Step 5: Solve for x
    x = 7,851,912.91/2,703.81
  6. Step 6: Final answer
    x = 2,904.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.