Home / 1,037.45-1,430.07-705.31

Finding the Fourth Proportional to 1,037.45, 1,430.07 and 705.31

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Solution

The fourth proportional to 1,037.45, 1,430.07 and 705.31 is: 972.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.45 : 1,430.07 = 705.31 : x
  2. Step 2: Convert to fraction form
    1,037.45/1,430.07 = 705.31/x
  3. Step 3: Cross multiply
    1,037.45x = 1,430.07 × 705.31
  4. Step 4: Simplify right side
    1,037.45x = 1,008,636.45
  5. Step 5: Solve for x
    x = 1,008,636.45/1,037.45
  6. Step 6: Final answer
    x = 972.22

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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.