Home / 2,681.04-3,699.66-1,561.93

Finding the Fourth Proportional to 2,681.04, 3,699.66 and 1,561.93

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Solution

The fourth proportional to 2,681.04, 3,699.66 and 1,561.93 is: 2,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.04 : 3,699.66 = 1,561.93 : x
  2. Step 2: Convert to fraction form
    2,681.04/3,699.66 = 1,561.93/x
  3. Step 3: Cross multiply
    2,681.04x = 3,699.66 × 1,561.93
  4. Step 4: Simplify right side
    2,681.04x = 5,778,609.94
  5. Step 5: Solve for x
    x = 5,778,609.94/2,681.04
  6. Step 6: Final answer
    x = 2,155.37

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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.