Home / 1,856.43-2,561.91-1,070.67

Finding the Fourth Proportional to 1,856.43, 2,561.91 and 1,070.67

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Solution

The fourth proportional to 1,856.43, 2,561.91 and 1,070.67 is: 1,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.43 : 2,561.91 = 1,070.67 : x
  2. Step 2: Convert to fraction form
    1,856.43/2,561.91 = 1,070.67/x
  3. Step 3: Cross multiply
    1,856.43x = 2,561.91 × 1,070.67
  4. Step 4: Simplify right side
    1,856.43x = 2,742,960.18
  5. Step 5: Solve for x
    x = 2,742,960.18/1,856.43
  6. Step 6: Final answer
    x = 1,477.55

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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.