Home / 2,586.51-3,569.40-1,538.64

Finding the Fourth Proportional to 2,586.51, 3,569.40 and 1,538.64

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Solution

The fourth proportional to 2,586.51, 3,569.40 and 1,538.64 is: 2,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.51 : 3,569.40 = 1,538.64 : x
  2. Step 2: Convert to fraction form
    2,586.51/3,569.40 = 1,538.64/x
  3. Step 3: Cross multiply
    2,586.51x = 3,569.40 × 1,538.64
  4. Step 4: Simplify right side
    2,586.51x = 5,492,021.62
  5. Step 5: Solve for x
    x = 5,492,021.62/2,586.51
  6. Step 6: Final answer
    x = 2,123.33

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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.