Home / 2,586.36-3,569.16-1,538.40

Finding the Fourth Proportional to 2,586.36, 3,569.16 and 1,538.40

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Solution

The fourth proportional to 2,586.36, 3,569.16 and 1,538.40 is: 2,122.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.36 : 3,569.16 = 1,538.40 : x
  2. Step 2: Convert to fraction form
    2,586.36/3,569.16 = 1,538.40/x
  3. Step 3: Cross multiply
    2,586.36x = 3,569.16 × 1,538.40
  4. Step 4: Simplify right side
    2,586.36x = 5,490,795.74
  5. Step 5: Solve for x
    x = 5,490,795.74/2,586.36
  6. Step 6: Final answer
    x = 2,122.98

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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.