Home / 1,907.12-2,630.47-1,161.13

Finding the Fourth Proportional to 1,907.12, 2,630.47 and 1,161.13

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Solution

The fourth proportional to 1,907.12, 2,630.47 and 1,161.13 is: 1,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.12 : 2,630.47 = 1,161.13 : x
  2. Step 2: Convert to fraction form
    1,907.12/2,630.47 = 1,161.13/x
  3. Step 3: Cross multiply
    1,907.12x = 2,630.47 × 1,161.13
  4. Step 4: Simplify right side
    1,907.12x = 3,054,298.67
  5. Step 5: Solve for x
    x = 3,054,298.67/1,907.12
  6. Step 6: Final answer
    x = 1,601.52

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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.