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Finding the Fourth Proportional to 1,858.61, 2,763.99 and 1,800.23

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Solution

The fourth proportional to 1,858.61, 2,763.99 and 1,800.23 is: 2,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.61 : 2,763.99 = 1,800.23 : x
  2. Step 2: Convert to fraction form
    1,858.61/2,763.99 = 1,800.23/x
  3. Step 3: Cross multiply
    1,858.61x = 2,763.99 × 1,800.23
  4. Step 4: Simplify right side
    1,858.61x = 4,975,803.90
  5. Step 5: Solve for x
    x = 4,975,803.90/1,858.61
  6. Step 6: Final answer
    x = 2,677.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.