Home / 1,534.10-2,102.31-1,386.48

Finding the Fourth Proportional to 1,534.10, 2,102.31 and 1,386.48

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Solution

The fourth proportional to 1,534.10, 2,102.31 and 1,386.48 is: 1,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.10 : 2,102.31 = 1,386.48 : x
  2. Step 2: Convert to fraction form
    1,534.10/2,102.31 = 1,386.48/x
  3. Step 3: Cross multiply
    1,534.10x = 2,102.31 × 1,386.48
  4. Step 4: Simplify right side
    1,534.10x = 2,914,804.81
  5. Step 5: Solve for x
    x = 2,914,804.81/1,534.10
  6. Step 6: Final answer
    x = 1,900.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.