Home / 1,510.21-2,083.80-972.32

Finding the Fourth Proportional to 1,510.21, 2,083.80 and 972.32

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Solution

The fourth proportional to 1,510.21, 2,083.80 and 972.32 is: 1,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.21 : 2,083.80 = 972.32 : x
  2. Step 2: Convert to fraction form
    1,510.21/2,083.80 = 972.32/x
  3. Step 3: Cross multiply
    1,510.21x = 2,083.80 × 972.32
  4. Step 4: Simplify right side
    1,510.21x = 2,026,110.00
  5. Step 5: Solve for x
    x = 2,026,110.00/1,510.21
  6. Step 6: Final answer
    x = 1,341.61

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1.5x scale

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.