Home / 1,856.81-2,561.77-1,110.90

Finding the Fourth Proportional to 1,856.81, 2,561.77 and 1,110.90

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Solution

The fourth proportional to 1,856.81, 2,561.77 and 1,110.90 is: 1,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.81 : 2,561.77 = 1,110.90 : x
  2. Step 2: Convert to fraction form
    1,856.81/2,561.77 = 1,110.90/x
  3. Step 3: Cross multiply
    1,856.81x = 2,561.77 × 1,110.90
  4. Step 4: Simplify right side
    1,856.81x = 2,845,870.29
  5. Step 5: Solve for x
    x = 2,845,870.29/1,856.81
  6. Step 6: Final answer
    x = 1,532.67

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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.