Home / 2,720.99-4,075.01-1,564.31

Finding the Fourth Proportional to 2,720.99, 4,075.01 and 1,564.31

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Solution

The fourth proportional to 2,720.99, 4,075.01 and 1,564.31 is: 2,342.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.99 : 4,075.01 = 1,564.31 : x
  2. Step 2: Convert to fraction form
    2,720.99/4,075.01 = 1,564.31/x
  3. Step 3: Cross multiply
    2,720.99x = 4,075.01 × 1,564.31
  4. Step 4: Simplify right side
    2,720.99x = 6,374,587.13
  5. Step 5: Solve for x
    x = 6,374,587.13/2,720.99
  6. Step 6: Final answer
    x = 2,342.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.