Home / 1,856.10-2,561.40-1,157.34

Finding the Fourth Proportional to 1,856.10, 2,561.40 and 1,157.34

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Solution

The fourth proportional to 1,856.10, 2,561.40 and 1,157.34 is: 1,597.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.10 : 2,561.40 = 1,157.34 : x
  2. Step 2: Convert to fraction form
    1,856.10/2,561.40 = 1,157.34/x
  3. Step 3: Cross multiply
    1,856.10x = 2,561.40 × 1,157.34
  4. Step 4: Simplify right side
    1,856.10x = 2,964,410.68
  5. Step 5: Solve for x
    x = 2,964,410.68/1,856.10
  6. Step 6: Final answer
    x = 1,597.12

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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.