Home / 2,588.40-3,569.70-2,090.88

Finding the Fourth Proportional to 2,588.40, 3,569.70 and 2,090.88

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Solution

The fourth proportional to 2,588.40, 3,569.70 and 2,090.88 is: 2,883.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.40 : 3,569.70 = 2,090.88 : x
  2. Step 2: Convert to fraction form
    2,588.40/3,569.70 = 2,090.88/x
  3. Step 3: Cross multiply
    2,588.40x = 3,569.70 × 2,090.88
  4. Step 4: Simplify right side
    2,588.40x = 7,463,814.34
  5. Step 5: Solve for x
    x = 7,463,814.34/2,588.40
  6. Step 6: Final answer
    x = 2,883.56

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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.