Home / 2,830.03-3,907.02-1,887.10

Finding the Fourth Proportional to 2,830.03, 3,907.02 and 1,887.10

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Solution

The fourth proportional to 2,830.03, 3,907.02 and 1,887.10 is: 2,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.03 : 3,907.02 = 1,887.10 : x
  2. Step 2: Convert to fraction form
    2,830.03/3,907.02 = 1,887.10/x
  3. Step 3: Cross multiply
    2,830.03x = 3,907.02 × 1,887.10
  4. Step 4: Simplify right side
    2,830.03x = 7,372,937.44
  5. Step 5: Solve for x
    x = 7,372,937.44/2,830.03
  6. Step 6: Final answer
    x = 2,605.25

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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.