Home / 4,887.36-7,312.75-2,905.76

Finding the Fourth Proportional to 4,887.36, 7,312.75 and 2,905.76

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Solution

The fourth proportional to 4,887.36, 7,312.75 and 2,905.76 is: 4,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.36 : 7,312.75 = 2,905.76 : x
  2. Step 2: Convert to fraction form
    4,887.36/7,312.75 = 2,905.76/x
  3. Step 3: Cross multiply
    4,887.36x = 7,312.75 × 2,905.76
  4. Step 4: Simplify right side
    4,887.36x = 21,249,107.46
  5. Step 5: Solve for x
    x = 21,249,107.46/4,887.36
  6. Step 6: Final answer
    x = 4,347.77

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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.