Home / 2,477.70-3,718.98-1,887.21

Finding the Fourth Proportional to 2,477.70, 3,718.98 and 1,887.21

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Solution

The fourth proportional to 2,477.70, 3,718.98 and 1,887.21 is: 2,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.70 : 3,718.98 = 1,887.21 : x
  2. Step 2: Convert to fraction form
    2,477.70/3,718.98 = 1,887.21/x
  3. Step 3: Cross multiply
    2,477.70x = 3,718.98 × 1,887.21
  4. Step 4: Simplify right side
    2,477.70x = 7,018,496.25
  5. Step 5: Solve for x
    x = 7,018,496.25/2,477.70
  6. Step 6: Final answer
    x = 2,832.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.