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Finding the Fourth Proportional to 1,887.57, 2,810.30 and 1,860.23

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Solution

The fourth proportional to 1,887.57, 2,810.30 and 1,860.23 is: 2,769.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.57 : 2,810.30 = 1,860.23 : x
  2. Step 2: Convert to fraction form
    1,887.57/2,810.30 = 1,860.23/x
  3. Step 3: Cross multiply
    1,887.57x = 2,810.30 × 1,860.23
  4. Step 4: Simplify right side
    1,887.57x = 5,227,802.09
  5. Step 5: Solve for x
    x = 5,227,802.09/1,887.57
  6. Step 6: Final answer
    x = 2,769.59

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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.