Home / 7,068.78-10,602.45-1,875.18

Finding the Fourth Proportional to 7,068.78, 10,602.45 and 1,875.18

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Solution

The fourth proportional to 7,068.78, 10,602.45 and 1,875.18 is: 2,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,068.78 : 10,602.45 = 1,875.18 : x
  2. Step 2: Convert to fraction form
    7,068.78/10,602.45 = 1,875.18/x
  3. Step 3: Cross multiply
    7,068.78x = 10,602.45 × 1,875.18
  4. Step 4: Simplify right side
    7,068.78x = 19,881,502.19
  5. Step 5: Solve for x
    x = 19,881,502.19/7,068.78
  6. Step 6: Final answer
    x = 2,812.58

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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.