Home / 1,562.40-2,155.32-973.08

Finding the Fourth Proportional to 1,562.40, 2,155.32 and 973.08

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Solution

The fourth proportional to 1,562.40, 2,155.32 and 973.08 is: 1,342.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,562.40 : 2,155.32 = 973.08 : x
  2. Step 2: Convert to fraction form
    1,562.40/2,155.32 = 973.08/x
  3. Step 3: Cross multiply
    1,562.40x = 2,155.32 × 973.08
  4. Step 4: Simplify right side
    1,562.40x = 2,097,298.79
  5. Step 5: Solve for x
    x = 2,097,298.79/1,562.40
  6. Step 6: Final answer
    x = 1,342.36

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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.