Home / 3,311.93-4,570.86-1,985.59

Finding the Fourth Proportional to 3,311.93, 4,570.86 and 1,985.59

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Solution

The fourth proportional to 3,311.93, 4,570.86 and 1,985.59 is: 2,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.93 : 4,570.86 = 1,985.59 : x
  2. Step 2: Convert to fraction form
    3,311.93/4,570.86 = 1,985.59/x
  3. Step 3: Cross multiply
    3,311.93x = 4,570.86 × 1,985.59
  4. Step 4: Simplify right side
    3,311.93x = 9,075,853.91
  5. Step 5: Solve for x
    x = 9,075,853.91/3,311.93
  6. Step 6: Final answer
    x = 2,740.35

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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.