Home / 3,312.99-4,570.29-1,985.82

Finding the Fourth Proportional to 3,312.99, 4,570.29 and 1,985.82

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Solution

The fourth proportional to 3,312.99, 4,570.29 and 1,985.82 is: 2,739.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.99 : 4,570.29 = 1,985.82 : x
  2. Step 2: Convert to fraction form
    3,312.99/4,570.29 = 1,985.82/x
  3. Step 3: Cross multiply
    3,312.99x = 4,570.29 × 1,985.82
  4. Step 4: Simplify right side
    3,312.99x = 9,075,773.29
  5. Step 5: Solve for x
    x = 9,075,773.29/3,312.99
  6. Step 6: Final answer
    x = 2,739.45

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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.