Home / 1,670.98-2,303.68-1,111.48

Finding the Fourth Proportional to 1,670.98, 2,303.68 and 1,111.48

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Solution

The fourth proportional to 1,670.98, 2,303.68 and 1,111.48 is: 1,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.98 : 2,303.68 = 1,111.48 : x
  2. Step 2: Convert to fraction form
    1,670.98/2,303.68 = 1,111.48/x
  3. Step 3: Cross multiply
    1,670.98x = 2,303.68 × 1,111.48
  4. Step 4: Simplify right side
    1,670.98x = 2,560,494.25
  5. Step 5: Solve for x
    x = 2,560,494.25/1,670.98
  6. Step 6: Final answer
    x = 1,532.33

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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.